CSS - PMS - CCE - PCS - Basic Computing
Computer Generations
Which electronic component was mainly used in first-generation computers?
A. Vacuum tubes
B. Transistors
C. Integrated circuits
D. Microprocessors
Correct Answer: A
A is correct because first-generation computers used vacuum tubes for switching and amplification. B is incorrect because transistors define the second generation. C is incorrect because integrated circuits characterize the third generation. D is incorrect because microprocessors are associated with the fourth generation.
CSS - PMS - CCE - PCS - Basic Computing
Computer Generations
Which technology replaced vacuum tubes in second-generation computers?
A. Magnetic drums
B. Transistors
C. Microprocessors
D. Artificial intelligence
Correct Answer: B
B is correct because transistors replaced vacuum tubes and made computers smaller, faster, and more reliable. A was used as memory in some early machines but did not define the second generation. C defines the fourth generation. D is mainly associated with fifth-generation goals.
CSS - PMS - CCE - PCS - Basic Computing
Computer Generations
Third-generation computers were primarily based on:
A. Vacuum tubes
B. Transistors
C. Integrated circuits
D. Quantum processors
Correct Answer: C
C is correct because integrated circuits placed multiple electronic components on a single chip. A belongs to the first generation. B belongs to the second generation. D is an emerging technology and not the standard basis of the third generation.
CSS - PMS - CCE - PCS - Basic Computing
Computer Generations
The beginning of the fourth generation is commonly linked with the invention of the:
A. Vacuum tube
B. Transistor
C. Integrated circuit
D. Microprocessor
Correct Answer: D
D is correct because the microprocessor placed the central processing unit on a single chip and enabled personal computers. A, B, and C mark earlier generations.
CSS - PMS - CCE - PCS - Basic Computing
Computer Generations
Fifth-generation computing mainly emphasizes:
A. Mechanical calculators
B. Artificial intelligence
C. Vacuum-tube circuits
D. Punched-card tabulation only
Correct Answer: B
B is correct because fifth-generation concepts emphasize artificial intelligence, natural-language processing, expert systems, robotics, and advanced parallel processing. A predates electronic generations. C belongs to the first generation. D was mainly an early input and data-processing method.
CSS - PMS - CCE - PCS - Basic Computing
Computer Generations
Which of the following is a well-known first-generation computer?
A. ENIAC
B. IBM PC
C. Apple II
D. PDP-8
Correct Answer: A
A is correct because ENIAC used thousands of vacuum tubes and is classified as a first-generation computer. B and C are fourth-generation personal computers. D is generally classified as a third-generation minicomputer.
CSS - PMS - CCE - PCS - Basic Computing
Computer Generations
Which programming language level was used most directly in first-generation computers?
A. Machine language
B. Python
C. Java
D. SQL
Correct Answer: A
A is correct because first-generation machines were commonly programmed using binary machine instructions. B, C, and D were developed much later and require advanced software environments.
CSS - PMS - CCE - PCS - Basic Computing
Computer Generations
A major disadvantage of first-generation computers was:
A. Extremely low heat production
B. Very small physical size
C. High power consumption and heat
D. Built-in artificial intelligence
Correct Answer: C
C is correct because vacuum tubes consumed large amounts of electricity and produced considerable heat. A and B state the opposite of first-generation characteristics. D was not available in those machines.
CSS - PMS - CCE - PCS - Basic Computing
Computer Generations
Which storage or input medium was commonly used with early first-generation computers?
A. Punched cards
B. Cloud storage
C. Solid-state drives
D. Blu-ray discs
Correct Answer: A
A is correct because punched cards and paper tape were widely used for input and data storage. B, C, and D are modern technologies introduced much later.
CSS - PMS - CCE - PCS - Basic Computing
Computer Generations
UNIVAC I is historically important because it was:
A. A mechanical calculator from the 1600s
B. One of the first commercial computers in the United States
C. The first smartphone
D. A fifth-generation expert system
Correct Answer: B
B is correct because UNIVAC I was among the first commercially produced general-purpose electronic digital computers in the United States. A refers to much earlier calculating devices. C and D are unrelated.